In a speech delivered at the meeting, Bayar said he was sorry for not being able to either continue to perform his duties as prime minister or fulfill his promises to voters due to health problems.

The parliament decided that First Vice Prime Minister N. Altankhuyag would temporarily carry out the premier's duties until an appointment of a new prime minister.

Bayar tendered his resignation for health reasons in a letter sent to the country's legislature Monday afternoon.

It is reported that he suffers from liver problems and used to seek treatment in South Korea. He was hospitalized in Ulan Bator last week.

Born in Ulan Bator, capital of Mongolia, in 1956, Bayar served as the general secretary of the Mongolian People's Revolutionary Party from 2005 to 2007. In October 2007, he was elected the party's chairman and was appointed Mongolia's prime minister that same year.

During his years as prime minister, Bayar actively engaged in promoting Mongolia's energy resources exploration and infrastructure construction. He also championed the country's third wasteland reclamation and planting project.